After plunging 7.69 per cent during the day, Bharti Airtel's scrip finally ended the day at Rs 293.40, down 4.74 per cent from its previous close on the BSE.

At NSE also the stock settled 4.39 per cent lower at Rs 294.

Following the dip in the stock, the market value of the telecom major tumbled Rs 5,544 crore to Rs 1,11,419 crore.

A Delhi court today summoned as accused Chairman-cum-Managing Director of Bharti Cellular Ltd Sunil Bharti Mittal, Essar Group promoter Ravi Ruia and five others in a case relating to alleged irregularities in allocation of additional spectrum to Airtel and Vodafone during the NDA regime.

The CBI, in its charge sheet, has named the three telecom companies, including Bharti Cellular as accused in the case in which DoT had allegedly allocated additional spectrum resulting in a loss of Rs 846 crore to the exchequer.